Nozzle



Patented Aub. 15, 192?.

. H. WILLS NOZZLE.

APPLICATION FILED APR. 18, 1922.

/H /f/f PATENT". oFFlcE.

NozzLE.

Application led'April 18, 1922.' Serial No.

To ZZ ywhom it may concern.'

Be it knownV that I, 'WILLIAM H.` WILLs, J r., a. citizen of the UnitedStates, residing at Charleroi, in the county of Washington and State ofPennsylvania, have invented certain new and useful Improvements inNozzles, of which the following is a specification, reference being hadtherein to the accompanying drawing. p v

This inventionv relates to nozzles for pouring molten metal and the likeand'is de-v signed1more particularly for use with a bottom pour ladle ofthe type now inl common use for various purposes. I

One object of the invention is to provide a nozzle with which arelatively large volume of metal may be poured through an opening, orconduit, of small diameter.

A further object of the invention is to provide a nozzle with'which thestream of metal will be substantially uniform and will have littletendency to spray.

A further object of the invention is to provide a nozzle of such a kindthat there will be little tendency to freeze up when the metal is notsuiiciently hot for proper pouring, and in which there will be a betteropportunity to reopen the nozzle in case it does freeze up. l

A further object of the invention is to provide a nozzle, having theseseveral advantages, which can be produced at a low cost and which can besubstituted for the present nozzle without material change in the ladle`Other objects of the invention may ap- 2 l fis-"fthe Ordinary nozzle,but because of the The accompanying drawing'is a sectional pear as thedevice is described in detail.

view taken vertically through a nozzle embodying my invention.

provide a body portion preferably of clay, or other heat resistingmaterial and provide that body with a conduit in the form of a compoundtube, through which the. metal is discharged from the ladle. In thepartieular form of the nozzle here shown the body portion l iscylindrical in shape and is adapted to be built into the bottom of theladle in the usual manner. The conduit comprises an upper portion 2which preferably is substantially cylindrical in shape,

and a lower portion 3 which `also is prefer ably substantiallycylindrical in shape and which is of greater diameter than the uppervportion 2. These two parts "ofthe conduit Specification of LettersPatent.

, upper surfacewitha cavit ratemeaang. 15, 1922.

are connected one to the other by an intermediate portion 4, the wallsof which preferably divergel uniformly from the lower end of the upperportion 2 to the upper end of thelower portion 3 of the conduit. Thediverging walls'of the intermediate portion merge into the walls of thesubstantially cylindrical upper and lower ortions. In the presentdrawing I have slig tly exaggerated the angular relation of the wallsofthe intermediate portion to the walls of the upper and -lower portions,in order to clearly showthe characteristics of these parts, but inpractise the several portions'of the tube will merge gradually one intothe other and the angular relation thereof will be less readilydiscernable than 'it isl in the drawing. The conduit will, however,retain the essential characteristics above set forth, that is, the upperand lower portions of different diameters and the diverging intermediateportion connecting the upper and lower portions and having its walls inangular rela# tion to. the walls ofsaid upper and lower portions.

The body portion'l is provided in its 5to form a seat for the h ead 6 of-the usua stopper and this cavity converges at 8 into the upper portion2 of the conduit. The lower part of the body portion 1 is provided witha' down-v wardly projecting portion 7 which extends through' thenozzleplate 9, ofthe ladle and through which the lower portion 3 of theconduit extends.,l

The nozzle is usedlinthe same manner as vl-zle thamwill pass through theordinary noz In constructing myl improved nozzle`- I more readilylopened. The characterv of thenozzle is such that it can be built atsubstantially the same cost as the ordinary nozzle and can be embodiedin the ladle with little-- or no change in the 'construction thereof.

lVhile I have shown and described one embodiment of my invention 'I wishit to be ico understood that ll do not desire to be limited to thedetails thereof as various modifications. may occur to a person skilledin the art.

Having now fully described my invention what I claim as new and desireto secure by Letters Patent is:

l. A nozzle for pouring molten metal and the like, comprising a bodyportion having a conduit, the upper and lower portions of which are of.different diameters and are connected one to the other by anintermediate portion, the walls of which diverge downwardly and arearranged at an angle to the walls of both the upper and lower portionsof said conduit.V

2.l A nozzle for pouring molten metal and the like comprising a bodyportion having a conduit provided with an upper substantiallycylindrical portion, a lower substantially cylindrical portion. and anintermediate portion connecting said upper and lower portions. l

3. A nozzle for pouring molten metal and the like comprising a bodyportion having a conduit provided with an upper substan` tiallycylindrical portion, a lower substantially cylindrical portion, and anintermediate portion, the walls of which diverge apmae-,13e

preciably from said upper portion to said lower portion.-

4. In a nozzle for pouring molten metal and the like, a body portionhaving a conduit comprising an upper substantially cylindrcal portionand a portion extending downwardly therefrom and having down wardlydiverging walls, said conduit having its discharge end of a greaterdiameter than said cylindrical portion.

5. In'a nozzle for lpouring molten metal and the'like, a body portionhaving a conduit comprising a lower substantially cylindrical portionand a second portion merging into and extending upwardly from the upperend of said cylindrical portion and having its upper end of a smallerdiameter than said cylindrical portion.

6. A nozzle for pouring molten metal and the like comprising a bodyportion having a stopper seat and a conduit, said conduit having anupper cylindrical portion of least diameter, a lower cylindrical portionof greater diameter and a portion converging from said stopper seat tosaidportion of least diameter.

ln testimony whereof, I aflix my signature hereto.

VVlLLlAM H. WlLlLS, JR.

